St. Athanasius stood contra mundum for the Trinitarian doctrine 'whole and undefiled,' when it looked as if all the civilized world was slipping back from Christianity into the religion of Arius, into one of those 'sensible' synthetic religions which are so strongly recommended today and which then, as now, included among their devotees many highly cultivated clergymen.

How should Orthodox Christians regard non-Christian religions? To treat this question, John Garvey provides a concise introduction to great religious traditions, East and West, and goes on to explore how seeds of truth may be found in them, while upholding the Orthodox Church's claim as the unique repository of the Christian tradition and the ark of salvation.